package com.dynread.web.controller.common;

//import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
//import javax.annotation.Resource;
//import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;

import com.wf.captcha.ArithmeticCaptcha;
import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.beans.factory.annotation.Value;
//import org.springframework.util.FastByteArrayOutputStream;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
//import com.google.code.kaptcha.Producer;
import com.dynread.common.constant.Constants;
import com.dynread.common.core.domain.AjaxResult;
import com.dynread.common.core.redis.RedisCache;
//import com.dynread.common.utils.sign.Base64;
import com.dynread.common.utils.uuid.IdUtils;

/**
 * 验证码操作处理
 * 
 * @author dynread
 */
@RestController
public class CaptchaController
{
    //@Resource(name = "captchaProducer")
    //private Producer captchaProducer;

    //@Resource(name = "captchaProducerMath")
    //private Producer captchaProducerMath;

    @Autowired
    private RedisCache redisCache;
    
    // 验证码类型
    //@Value("${dynread.captchaType}")
    //private String captchaType;

    /**
     * 生成验证码
     */
    @GetMapping("/captchaImage")
    public AjaxResult getCode(HttpServletResponse response) throws IOException
    {
        // 保存验证码信息
        String uuid = IdUtils.simpleUUID();
        String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;

        String code = null;
        //String capStr = null;
        //BufferedImage image = null;

        // 生成验证码
        //if ("math".equals(captchaType))
        //{
        //    String capText = captchaProducerMath.createText();
        //    capStr = capText.substring(0, capText.lastIndexOf("@"));
        //    code = capText.substring(capText.lastIndexOf("@") + 1);
        //    image = captchaProducerMath.createImage(capStr);
        //}
        //else if ("char".equals(captchaType))
        //{
        //    capStr = code = captchaProducer.createText();
        //    image = captchaProducer.createImage(capStr);
        //}

        // 转换流信息写出
        //FastByteArrayOutputStream os = new FastByteArrayOutputStream();
        //try
        //{
        //    ImageIO.write(image, "jpg", os);
        //}
        //catch (IOException e)
        //{
        //    return AjaxResult.error(e.getMessage());
        //}

        // 算术类型 https://gitee.com/whvse/EasyCaptcha
        ArithmeticCaptcha captcha = new ArithmeticCaptcha(111, 36);
        // 几位数运算，默认是两位
        captcha.setLen(2);
        // 获取运算的结果
        try {
            code = new Double(Double.parseDouble(captcha.text())).intValue() + "";
        } catch (Exception e) {
            code = captcha.text();
        }

        redisCache.setCacheObject(verifyKey, code, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);

        AjaxResult ajax = AjaxResult.success();
        ajax.put("uuid", uuid);
        //ajax.put("img", Base64.encode(os.toByteArray()));
        ajax.put("img", captcha.toBase64());
        return ajax;
    }
}
